| 时间 |
值 （%） |
世界排名 |
| 2014 |
6.81 |
40 |
| 2013 |
7.92 |
29 |
| 2012 |
10.57 |
17 |
| 2011 |
9.76 |
20 |
| 2010 |
11.33 |
13 |
| 2009 |
5.06 |
72 |
| 2008 |
7.32 |
58 |
| 2007 |
4.08 |
107 |
| 2006 |
5.06 |
68 |
| 2005 |
3.712 |
92 |
| 2004 |
3.6 |
92 |
| 2003 |
2.742 |
114 |
| 2002 |
2.621 |
125 |
| 2001 |
4.1 |
110 |
| 2000 |
78.7 |
1 |
| 1999 |
3.347 |
129 |
| 1998 |
16.155 |
31 |
| 1997 |
19.05 |
22 |